Results 251 to 260 of about 725,568 (275)
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Energy direction finding method taking into account the curvature of the Earth and interference
Optoelectronics, Instrumentation and Data Processing, 2017This paper presents a method using a two-position system to determine the spatial coordinates of a moving radiation source from one bearing measurement and relative energy measurements of the received signal taking into account the effect of its reflection from the Earth surface.
Yu. G. Bulychev, A. A. Mozol’
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Curvature Interference Characteristic of Plane Worm Gear in Offsetting Cylindrical Worm Drive
2021In this paper, the theory of the curvature interference characteristic is well established for the plane worm gear in the offsetting cylindrical worm drive. The offsetting cylindrical worm drive investigated in this paper is composed of an Archimedes cylindrical worm having the asymmetric tooth profile and a plane worm gear.
Qingxiang Meng +3 more
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High-Curvature Features on Branched Nanoconstructs Circumvent Protein Corona Interference
ACS Applied Materials & InterfacesThis paper reports how the local nanoscale curvature on nanoparticle constructs determines the protein corona distribution in biological conditions. Using transmission electron microscopy, we found that DNA-gold nanostar nanoconstructs (DNA-AuNS) having positive-curvature tips
Bundit Diloknawarit +2 more
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Fiber Ring Cavity Laser Based on Modal Interference for Curvature Sensing
IEEE Photonics Technology Letters, 2016Fiber ring laser sensor for curvature measurement based on a single-mode–no-core–single-mode structure is proposed and experimentally demonstrated. Compared with the conventional curvature system, the proposed laser sensor system has a high optical signal-to-noise ratio and a narrow 3-dB bandwidth, which enables the system to monitor the variation of ...
Chunran Sun +5 more
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OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), 2021
A Mach-Zehnder curvature sensor with enhanced contrast based on lateral-offset splicing is proposed. The highest contrast was obtained at 2 µm lateral-offset. Using the Fourier Transform, amplitude changes were traced from 0 m-1 to 2.68 m-1.
S. Marrujo-García +6 more
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A Mach-Zehnder curvature sensor with enhanced contrast based on lateral-offset splicing is proposed. The highest contrast was obtained at 2 µm lateral-offset. Using the Fourier Transform, amplitude changes were traced from 0 m-1 to 2.68 m-1.
S. Marrujo-García +6 more
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Curvature and sensitivity enhanced temperature polymer-coated multimode interference sensor
Infrared Sensors, Devices, and Applications IX, 2019A multimode interference (MMI) sensor was designed and experimentally demonstrated for simultaneous measurement of curvature and temperature. A typical fiber structure of single-mode fiber – multimode fiber – single-mode fiber (SMS), mounted in a long and thin carbon steel sheet, and then coated with polydimethylsiloxane (PDMS) was manufactured and ...
Sigifredo Marrujo-Garcia +4 more
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Interference method for measuring radii of curvature of small components' surfaces
Measurement Techniques, 19711. Having investigated methods for measuring the radii of curvature of surface sections in small-size articles, we have developed an interference-projection method for such measurements by means of circular templets. This method can be used for very rapid and precise evaluations of the radii of curvature, the ovality, and the surface finish of ...
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Applied Mechanics and Materials, 2011
The double-point downhill secant method (the DPDS method) is proposed to solve the nonlinear equations to determine the curvature interference limit points for modified hourglass worm drives. Thereupon, the whole curvature interference limit line can be obtained by interpolation. Based on this, the undercutting feature of the corrected worm gear can be
Ya Ping Zhao, Tian Chao Wu
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The double-point downhill secant method (the DPDS method) is proposed to solve the nonlinear equations to determine the curvature interference limit points for modified hourglass worm drives. Thereupon, the whole curvature interference limit line can be obtained by interpolation. Based on this, the undercutting feature of the corrected worm gear can be
Ya Ping Zhao, Tian Chao Wu
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Microwave and Optical Technology Letters, 2015
ABSTRACTIn this article, a sensing head consisting of fiber loop mirror inscribed with a highly Birefringence photonic crystal fiber (HiBi‐PCF) was proposed and experimentally demonstrated. The fully collapsed air holes of the PCF at the spice regions allow the coupling of PCF core and cladding modes that makes a Mach–Zehnder interferometer. The couple
Yong Zhao, Peng Gao, Yang Yang
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ABSTRACTIn this article, a sensing head consisting of fiber loop mirror inscribed with a highly Birefringence photonic crystal fiber (HiBi‐PCF) was proposed and experimentally demonstrated. The fully collapsed air holes of the PCF at the spice regions allow the coupling of PCF core and cladding modes that makes a Mach–Zehnder interferometer. The couple
Yong Zhao, Peng Gao, Yang Yang
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Direction Curvature Laser Sensor Based On Supermodal Interference In a Seven-Core Fiber
Optica Latin America Optics and Photonics Conference (LAOP) 2024A laser sensor for direction bending measurement is presented. It is based on a seven-core fiber (SCF) Mach-Zehnder interferometer in a laser cavity. Wavelength and intensity changes determine the magnitude and direction of bending, respectively.
A. L. Martínez-De-León +5 more
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